There
have been 44 days during the past 119 years in which the recorded
temperature inLincoln, NE
fell to or below -20o F.

Some months
and days have clusters of extreme cold. For example,January 12th
has seen -33o F in 1974, -26o F in 1912, and
-20o F in 1887.

The
decade with the most number of times the mercury fell to or below
-20o F wasthe 1970's
with 10 occurrences (5 of which were in January 1974!). The mercury
has onlyfallen to or
below -20o F twice in the 1990's, and that was in
February 1996.